====== NT4 Domains ====== ===== Corrupt DHCP Database ===== The DHCP server may fail to start if the database becomes corrupt. An indication is an event in the Event Log like this: Event ID: 1014 Source: DhcpServer Type: Error Description: The Jet database returned the following Error: -1022 To fix it, perform the following steps: - Stop the DHCP Service with ''net stop dhcpserver'' - Replace the DB file at ''%SYSTEMROOT%\system32\dhcp\dhcp.mdb'' with its backup from ''%SYSTEMROOT%\system32\dhcp\backup\jet\new\dhcp.mdb'' - Restart the DHCP server with ''net start dhcpserver'' If this doesn't work, you may need to delete the entire ''%SYSTEMROOT%\system32\dhcp'' folder.